 
     :terrains
     {:plains        {:description "Plains"
-                     :image "tilesets/elite-command/terrains/plains.png"
-                     :can-build []}
+                     :image "tilesets/elite-command/terrains/plains.png"}
      :mountains     {:description "Mountains"
-                     :image "tilesets/elite-command/terrains/mountains.png"
-                     :can-build []}
+                     :image "tilesets/elite-command/terrains/mountains.png"}
      :woods         {:description "Woods"
-                     :image "tilesets/elite-command/terrains/woods.png"
-                     :can-build []}
+                     :image "tilesets/elite-command/terrains/woods.png"}
      :desert        {:description "Desert"
-                     :image "tilesets/elite-command/terrains/desert.png"
-                     :can-build []}
+                     :image "tilesets/elite-command/terrains/desert.png"}
      :tundra        {:description "Tundra"
-                     :image "tilesets/elite-command/terrains/tundra.png"
-                     :can-build []}
+                     :image "tilesets/elite-command/terrains/tundra.png"}
      :swamp         {:description "Swamp"
-                     :image "tilesets/elite-command/terrains/swamp.png"
-                     :can-build []}
+                     :image "tilesets/elite-command/terrains/swamp.png"}
      :ford          {:description "Ford"
-                     :image "tilesets/elite-command/terrains/ford.png"
-                     :can-build []}
+                     :image "tilesets/elite-command/terrains/ford.png"}
      :shallow-water {:description "Shallow Water"
-                     :image "tilesets/elite-command/terrains/shallow-water.png"
-                     :can-build []}
+                     :image "tilesets/elite-command/terrains/shallow-water.png"}
      :deep-water    {:description "Deep Water"
-                     :image "tilesets/elite-command/terrains/deep-water.png"
-                     :can-build []}
+                     :image "tilesets/elite-command/terrains/deep-water.png"}
      :base          {:description "Base"
-                     :image "tilesets/elite-command/terrains/base-COLOR.png"
-                     :can-build [:infantry
-                                 :grenadier
-                                 :mortar
-                                 :ranger
-                                 :sniper
-                                 :medic
-                                 :engineer
-                                 :humvee
-                                 :tank
-                                 :heavy-tank
-                                 :artillery
-                                 :heavy-artillery]}
+                     :image "tilesets/elite-command/terrains/base-COLOR.png"}
      :seaport       {:description "Seaport"
-                     :image "tilesets/elite-command/terrains/seaport-COLOR.png"
-                     :can-build [:frigate
-                                 :destroyer
-                                 :cruiser]}}
+                     :image "tilesets/elite-command/terrains/seaport-COLOR.png"}}
 
     :unit-state-maps
     {:move-attack-once

                :movement 9
                :can-capture true
                :can-repair #{}
                :min-range 1
                :max-range 1
                :armor-type :personnel

               :movement 4
               :can-capture false
               :can-repair #{}
               :buildable-at #{:seaport}
               :min-range 1
               :max-range 3
               :armor-type :naval
